html{
    width: 100%;
    height: 100%;
}
body{
    width: 100%;
    height: 100%;
}
/* ============================== 添加课程的框架 =========================== */
#addCourse {
    width: 100%;
    height: 100%;
    /*background-color: #efa2a9;*/
}

/* ====================== 每一步的div ====================== */
.step {
    width: 90%;
    height: 100%;
    /*background-color: #abdde5;*/
    margin: 0 auto;
}

/* =============== 步骤状态的样式 =============== */
.show_step {
    width: 100%;
    height: 17%;
    /*background-color: #fd7e14;*/
}

/* ====== 步骤1,2,3 ======*/
.step_div {
    width: 20%;
    height: 100%;
    /*background-color: lightsteelblue;*/
    float: left;
}

/* step icon */
.circle {
    width: 20%;
    height: 40%;
    border-radius: 50%;
    font-size: 20px;
    float: left;
    text-align: center;
    line-height: 220%;
    border: gray 1px solid;
    color: gray;
    margin-top: 17%;
    margin-left: 20%;
}

.step_info {
    font-size: 20px;
    float: left;
    margin-top: 20%;
    margin-left: 5%;
    color: gray;
}

/* ====== 连接线 ======*/
.as_line {
    width: 20%;
    height: 3%;
    background-color: lightgrey;
    margin-top: 5%;
    float: left;
}

/* =============== 填写课程的信息 =============== */
.course_info {
    width: 80%;
    height: 83%;
    /*background-color: #71dd8a;*/
    margin-left: 4%;
}
.info_input{
    width: 90%;
    height: 10%;
    /*border: #c82333 1px solid;*/
}
.input_lg{
    height: 20%;
}
.input_name{
    width: 10%;
    height: 100%;
    /*background-color: #f1b0b7;*/
    line-height: 200%;
    float: left;
}
.input_body{
    width: 90%;
    height: 100%;
    line-height: 200%;
    float: left;
}
/*图片上传预览*/
.btnWrap {
    width: 100px;
    height: 100px;
    position: relative;
}
.upload {
    width: 100px;
    height: 100px;
    background: url("../img/uploadImg.png") no-repeat;
    position: absolute;
    left: 0;
    top: 0;
}
.upload.ts {
    background-size: 100px 100px;
}
.file {
    width: 100px;
    height: 100px;
    position: absolute;
    left: 0;
    top: 0;
    z-index: 10;
    opacity: 0
}
/*   ===================== 第二步  =====================*/
/* ===== 添加章节 =====*/
.chapter_add{
    float: left;
    width: 25%;
    height: 100%;
    /*background-color: #f1b0b7;*/
}
/* ===== 添加课件和测试的内容 =====*/
.chapter_content{
    float: left;
    width: 75%;
    height: 100%;
    /*background-color: #fd7e14;*/
    border: lightgrey 3px solid;
}
/* ==== 章节列表 =====*/
.chapter_list{
    width: 90%;
    height: 80%;
    /*background-color: #c82333;*/
    border: lightgrey 3px solid;
}
.chapter_list span:hover{
    color: red;
    font-weight: bold;
}
.chapter_name{
    width: 85%;
    float: left;
    padding: 5px;
}
/* ==== 添加课件 ====*/
.add_courseware{
    width: 99%;
    height: 80%;
    /*background-color: #6f42c1;*/
}
/* ==== 添加章节测试 ====*/
.add_exam{
    width: 99%;
    height: 19%;
    /*background-color: #34ce57;*/
}
/* === 按钮位置 ===*/
.butnlocation{
    position: relative;
    top: 10px;
    left: 10px;
}
/* === 课件列表 ===*/
.add_cw_btn{
    width: 100%;
    height: 15%;
}
.courseware_list{
    width: 100%;
    height: 85%;
    /*background-color:yellow;*/
}
/* === 章节测试名字预览 ===*/
.exam_btn_div{
    float: left;
    width: 30%;
    height: 50%;
    /*background-color: #491217;*/
}
.exam_content_div{
    float: left;
    width: 60%;
    height: 50%;
    /*background-color: #e83e8c;*/
}
/* === 上一步下一步按钮 ===*/
.stepto_div{
    width: 100%;
    height: 50%;
    /*background-color: burlywood;*/
    float: left;
}
/* ========================= 第三步 ==========================*/
.chooseType{
    width: 100%;
    height: 15%;
    /*background-color: #f1b0b7;*/
}
.settings_name{
    width: 10%;
    height: 100%;
    /*background-color: #6f42c1;*/
    float: left;
}
.type_div{
    width: 90%;
    height: 100%;
    /*background-color: #fd7e14;*/
    float: left;
}
.other_settings{
    width: 100%;
    height: 15%;
    /*background-color: #c82333;*/
}
.operation_btn{
    width: 100%;
    height: 10%;
    /*background-color: yellow;*/
}
.mult_check{
    margin-right: 40px;
    border-radius: 5px;
    float: left;
    background-color: rgb(24,144,255);
    padding: 10px;
}
